Harvia M3 16.5kW Wood Burning Sauna Stove | WKM3
A 16.5kW Harvia M3 wood-burning stove for small saunas — off-grid simplicity, pure crackle-and-flame ritual with a classic glass-door design.
- Runs entirely off wood: no electrical hookup needed.
- 66 lb stone load holds heat and throws dense, steady steam.
- Stainless steel body and cast-iron-framed glass door, designed in Finland.
See What People Are Saying…
“This has completely transformed my workspace. The natural light is a game changer!”
“Built it in a weekend with my brother. Glass front is the move — feels like a real room, not a closet.”
“I love the design and how easy it was to set up. Highly recommend for any home owner.”
- Description
- Specifications
- Documents
- Warranty
Classically stylish in its design, the Harvia M3 stove catches the eye and is suitable for a small wood-heated sauna up to 459 cubic ft (CF).
With a classic design, even heat, and efficient air circulation the Harvia M3 can turn smaller saunas into a big deal. It makes for a relaxing getaway with a touch of a traditional sauna atmosphere. Allow the shimmer of the warm glow from the glass door to take you to your happy place where your stress melts away with the heat.
The M3 wood-burning heater can be equipped with a pipe model water heater for extra amenities.
Features
- For sauna rooms from 212 to 459 cu. ft.
- 16.5 kW
- 66 pound stone capacity (sold separately)
- Stainless steel housing
- Cast-iron-framed glass door
- Ash Box
- Designed, engineered, and made in Finland
- 2-year manufacturers warranty
| Sauna Room | 211-459 ft³ |
| Width | 15" |
| Depth | 16.9" |
| Height | 28" |
| Heater Weight | 97 lbs |
| Shipping Weight with Sauna Stones | 163 lbs |
Safety Distances
Safety Distances — M3 / M3 SL
| Clearance | Minimum |
|---|---|
| A — stove top to ceiling | 47.2" (1200 mm) |
| B — stove to side wall | 9.8" (250 mm) |
| C — stove to rear wall | 11.8" (300 mm) |
| D — stove front to opposite wall or bench | 11.8" (300 mm) |
Measured from the stove body to any combustible surface. A non-combustible wall behind a protective sheath may be closer — see the manual for sheathed installations. Always confirm against the Installation and Operation Manual linked below before building.
Safety Distances With a Protective Sheath
| Clearance | M3, M3 SL (WL400 / WL450) |
|---|---|
| B — stove to side wall | 2.0" (50 mm) |
| C — stove to rear wall | 2.0" (50 mm) |
| D — stove front to opposite surface | 11.8" (300 mm) |
| F — sheath to wall | 1.2" (30 mm) |
These clearances apply only with the protective sheath listed above fitted. Without it, use the unsheathed distances given elsewhere on this page. A minimum 2" (50 mm) ventilated gap is required behind the sheath.
